CBS's publicity department sent photos to newspapers
and TV related magazines to promote their new series as well. Here is the
press release sent out for The Partridge Family: 2200 A.D.

In order to promote their new series, Hanna-Barbera's
artists assisted their publicity department in churning out artwork to
send to news and TV organizations. These publicity pieces were created
by artist Jack Manning, well-known for his work in comic books. Animation
cels were created from his art, and 35mm slides were sent to magazines
and newspapers. Shown here are all of the publicity pieces created for
the series:

Click on the images below for full-size
art!

Fan mail was answered by Hanna-Barbera's publicity
department as well. When kids wrote to their favorite cartoon characters,
the studio sent these black and white photos -- taken from Jack Manning's
designs: